Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical energy applicator
Patent
1999-03-01
2000-09-12
Evanisko, George R.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical energy applicator
A61N 105
Patent
active
061190446
ABSTRACT:
An implantable electrode array, adapted for insertion into either a left or right cochlea, assumes a spiral shape so as to hug the modiolar wall of the cochlea after insertion into the cochlea. All of the electrode contacts are spaced apart along one edge or side of the array, termed the "medial side", which medial side resides on the inside of the spiral. The electrode contacts are thus positioned in close proximity to the modiolar wall, closest to the ganglion cells that are to be stimulated by the electrode array. A positioning stylet made from a suitable memory wire is inserted into a longitudinal channel of the array. The stylet is made from memory wire and has properties selected to return to a desired memory spiral shape at or near body temperature (e.g., approximately 37.degree. C. or 98.6.degree. F.). The positioning stylet is cooled and bent as needed to assume a relatively straight, or non-spiral shape. While relatively straight, the stylet is slidably inserted into the longitudinal channel of the electrode array. The electrode array is then inserted into the cochlea in conventional manner. As the stylet within the electrode array warms to body temperature, it returns to its spiral memory shape, thereby causing the electrode array to also assume a spiral shape, thus positioning the electrode contacts of the electrode array against the modiolar wall.
REFERENCES:
patent: 4284085 (1981-08-01), Hansen et al.
patent: 4819647 (1989-04-01), Byers et al.
patent: 4832051 (1989-05-01), Jarvik et al.
patent: 4898183 (1990-02-01), Kuzma
patent: 4991582 (1991-02-01), Byers et al.
patent: 5000194 (1991-03-01), van den Honert et al.
patent: 5037497 (1991-08-01), Stypulkowski
patent: 5324321 (1994-06-01), Pohndorf et al.
patent: 5443493 (1995-08-01), Byers et al.
patent: 5545219 (1996-08-01), Kuzma
patent: 5578084 (1996-11-01), Kuzma et al.
patent: 5603726 (1997-02-01), Schulman et al.
patent: 5630839 (1997-05-01), Corbett, III et al.
patent: 5645585 (1997-07-01), Kuzma
patent: 5649970 (1997-07-01), Loeb et al.
patent: 5653742 (1997-08-01), Parker et al.
patent: 5667514 (1997-09-01), Heller
patent: 5800500 (1998-09-01), Spelman et al.
Advanced Bionics Corporation
Evanisko George R.
Gold Bryant R.
LandOfFree
Cochlear electrode array with positioning stylet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cochlear electrode array with positioning stylet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cochlear electrode array with positioning stylet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-104692